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   1  <?php
   2  /**
   3  *
   4  * This file is part of the phpBB Forum Software package.
   5  *
   6  * @copyright (c) phpBB Limited <https://www.phpbb.com>
   7  * @license GNU General Public License, version 2 (GPL-2.0)
   8  *
   9  * For full copyright and license information, please see
  10  * the docs/CREDITS.txt file.
  11  *
  12  */
  13  
  14  namespace phpbb\auth;
  15  
  16  use Symfony\Component\DependencyInjection\ContainerInterface;
  17  
  18  /**
  19  * Collection of auth providers to be configured at container compile time.
  20  */
  21  class provider_collection extends \phpbb\di\service_collection
  22  {
  23      /** @var \phpbb\config\config phpBB Config */
  24      protected $config;
  25  
  26      /**
  27      * Constructor
  28      *
  29      * @param ContainerInterface $container Container object
  30      * @param \phpbb\config\config $config phpBB config
  31      */
  32  	public function __construct(ContainerInterface $container, \phpbb\config\config $config)
  33      {
  34          $this->container = $container;
  35          $this->config = $config;
  36      }
  37  
  38      /**
  39      * Get an auth provider.
  40      *
  41      * @param string $provider_name The name of the auth provider
  42      * @return object    Default auth provider selected in config if it
  43      *            does exist. Otherwise the standard db auth
  44      *            provider.
  45      * @throws \RuntimeException If neither the auth provider that
  46      *            is specified by the phpBB config nor the db
  47      *            auth provider exist. The db auth provider
  48      *            should always exist in a phpBB installation.
  49      */
  50  	public function get_provider($provider_name = '')
  51      {
  52          $provider_name = ($provider_name !== '') ? $provider_name : basename(trim($this->config['auth_method']));
  53          if ($this->offsetExists('auth.provider.' . $provider_name))
  54          {
  55              return $this->offsetGet('auth.provider.' . $provider_name);
  56          }
  57          // Revert to db auth provider if selected method does not exist
  58          else if ($this->offsetExists('auth.provider.db'))
  59          {
  60              return $this->offsetGet('auth.provider.db');
  61          }
  62          else
  63          {
  64              throw new \RuntimeException(sprintf('The authentication provider for the authentication method "%1$s" does not exist. It was not possible to recover from this by reverting to the database authentication provider.', $this->config['auth_method']));
  65          }
  66      }
  67  }